2D- and 3D-visualisation of NDT-data using data fusion technique

Kohl, Christoph; Krause, Martín; Maierhofer, Christiane; Wöstmann, Jens

doi:10.1007/bf02481654

Cited by 34 publications

(20 citation statements)

References 9 publications

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“…Therefore, in order to fully conduct the process of nondestructive imaging of the structure state data fusion of multiple features extracted from both methods results was carried out. The multiple sources' inspection using the methods coming from different physical origins and utilizing various phenomena to visualize the structure state make the evaluation system more robust for the unwanted disturbances and increase the overall performance of the accession process [4,5,17]. The block diagram of the algorithm utilized in this paper is presented in Figure 7.…”

Section: Evaluation Using Multiple Features Data Fusionmentioning

confidence: 99%

Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

Łopato

Psuj

Szymanik

2016

Advances in Materials Science and Engineering

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The inspection of thin basalt fiber reinforced composite materials was carried out using two nondestructive methods: terahertz time domain imaging and infrared thermography. In order to combine the information about the defects arising in examined materials the inspection results were parametrized. In order to acquire more information content, new approximation based features are proposed. Then, a knowledge extraction based multivariate analysis of preselected features' vector was carried out. Finally, in order to integrate features distributions of representing different dynamic level of information, a multiresolution wavelet based data fusion algorithm was applied. The results are presented and discussed.

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Section: Evaluation Using Multiple Features Data Fusionmentioning

confidence: 99%

Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

Łopato

Psuj

Szymanik

2016

Advances in Materials Science and Engineering

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“…Therefore, in order to fully conduct the process of nondestructive imaging of the structure state data fusion of multiple features extracted from both methods results were carried out. The multiple sources inspection make the evaluation system more robust for the unwanted disturbances and increase the overall performance of the accession process [9], [10]. The block diagram of the algorithm utilized in this paper is presented in Fig.…”

Section: Data Fusionmentioning

confidence: 99%

Coupled Active Thermography and Terahertz Technique in Composite Materials Defects' Evaluation

Szymanik¹,

Łopato²,

Psuj³

2016

Proceedings of the 2016 International Conference on Quantitative InfraRed Thermography

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In this paper the technique of defects evaluation in composite materials based on a combination of active thermography method and terahertz technique is presented. The composite glass fiber sample with delaminations produced by load conditions was chosen for the tests. Active Infrared thermography with halogen lamps and terahertz technique are sensitive to changes in different physical parameters of the tested material. The combination of these techniques, performed by the data fusion of obtained measurements results allows to obtain the full information on the detected material's defect.

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“…Studies have shown GPR is highly effective when combined with other NDT methods (Kohl et al 2005, Maierhofer et al 2004, Cruz et al 2010. The high-speed nature of GPR and its sensitivity to changes in surface dielectric makes it an ideal candidate to use with laser scanning.…”

Section: Ground Penetrating Radarmentioning

confidence: 99%

Noncontact techniques for monitoring of tunnel linings

White

Hurlebaus

Shokouhi³

et al. 2014

Structural Monitoring and Maintenance

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An investigation of tunnel linings is performed at two tunnels in the US using complimentary noncontact techniques: air-coupled ground penetrating radar (GPR), and a vehicle-mounted scanning system (SPACETEC) that combines laser, visual, and infrared thermography scanning methods. This paper shows that a combination of such techniques can maximize inspection coverage in a comprehensive and efficient manner. Since ground-truth is typically not available in public tunnel field evaluations, the noncontact techniques used are compared with two reliable in-depth contact nondestructive testing methods: ground-coupled GPR and ultrasonic tomography. The noncontact techniques are used to identify and locate the reinforcement mesh, structural steel ribs, internal layer interfaces, shallow delamination, and tile debonding. It is shown that this combination of methods can be used synergistically to provide tunnel owners with a comprehensive and efficient approach for monitoring tunnel lining conditions.

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2D- and 3D-visualisation of NDT-data using data fusion technique

Cited by 34 publications

References 9 publications

Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

Nondestructive Inspection of Thin Basalt Fiber Reinforced Composites Using Combined Terahertz Imaging and Infrared Thermography

Coupled Active Thermography and Terahertz Technique in Composite Materials Defects' Evaluation

Noncontact techniques for monitoring of tunnel linings

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